Plastic bag printing device

By introducing lifting control, buffering, and movement control mechanisms into the plastic bag printing device, the problems of adhesion between the printing plate and the plastic bag and insufficient limiting are solved, enabling smooth separation of the printing plate and the plastic bag and flatness of the plastic bag, thereby improving printing quality and equipment life.

CN223948822UActive Publication Date: 2026-02-27QINGDAO TIANZHIJIU PLASTIC PACKING CO LTD
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Patent Information

Application Number
CN202520880348.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-02-27
Estimated Expiration
2035-05-07

AI Technical Summary

Technical Problem

Existing plastic bag printing equipment is prone to printing plate sticking to plastic bags during printing, and the lack of an effective limiting mechanism leads to poor printing quality.

Method used

A plastic bag printing device was designed, comprising a lifting control mechanism, a buffer mechanism, and a movement control mechanism. The printing plate and the plastic bag are buffered and separated by a separation frame and a spring, and the plastic bag is limited by an auxiliary roller to accommodate plastic bags of different sizes.

Benefits of technology

It effectively prevents the printing plate from sticking to the plastic bag, extends the service life of the printing plate, and ensures that the plastic bag is flat, thus improving printing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic bag printing, in particular to a plastic bag printing device which comprises a workbench, a feeding roller is rotationally installed at one end of the upper end face of the workbench, a support is fixedly installed at the end, away from the feeding roller, of the upper end face of the workbench, and a winding roller is transversely and rotationally installed on the upper portion of the support. The winding roller is connected with a power mechanism, a fixing frame is fixedly installed in the middle of the workbench, a connecting plate is installed on the fixing frame through a lifting control mechanism, a fixing plate is installed on the connecting plate through a buffering mechanism, a printing plate is fixedly installed in the middle of the lower end face of the fixing plate, and the outer wall of the printing plate is movably sleeved with a separation frame. The plastic bag printing device can prevent the printing device from being adhered to a plastic bag, and can ensure the tiling of the plastic bag and stabilize the printing quality.
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Description

TECHNICAL FIELD

[0001] The utility model relates to plastic bag printing technical field especially relates to a plastic bag printing device. BACKGROUND

[0002] Plastic bag is the bag that is made with plastic as main raw material, is the indispensable article in people's daily life, is often used to pack other articles, because its cheap, weight extremely light, capacity, convenient to store's advantage is widely used, and plastic bag usually carries out printing processing.

[0003] But in the prior art, the printing plate is easy to stick with the plastic bag when the printing device prints the plastic bag, which causes the printing work of the plastic bag to be interrupted, and there is no corresponding auxiliary limiting mechanism in the conveying process of the plastic bag, which causes the plastic bag to be not flat, and affects the printing quality, therefore, we provide a plastic bag printing device. UTILITY MODEL CONTENT

[0004] The utility model provides a plastic bag printing device, solve above described technical problem.

[0005] The utility model solves the technical problem that above described scheme is as follows: a plastic bag printing device, including work table, work table upper end face one end rotationally installed has the feeding roller, work table upper end face is away from the feeding roller one end fixedly installed has the support, the support upper part transversely rotationally installed has the winding roller, the winding roller is connected with power mechanism, work table middle part fixedly installed has the fixed frame, the fixed frame is installed with the connecting plate through the lift control mechanism, the connecting plate is installed with the fixed plate through the buffer mechanism, the fixed plate lower end surface middle part fixedly installed has the printing plate, the printing plate outer wall movably covers and sets up the separation frame, the separation frame is fixedly connected with the fixed plate through the vertically arranged telescopic link, the telescopic link outer wall movably covers and is connected with first spring, the fixed frame both sides side wall is installed with the moving plate through the removal control mechanism respectively, the moving plate side wall transversely rotationally installed has a plurality of equidistance arrangement's auxiliary roller.

[0006] Preferably, the power mechanism includes a motor fixedly installed on the outer wall of the support, and the output shaft of the motor rotationally penetrates through the support and is fixedly connected with the winding roller.

[0007] Preferably, the lift control mechanism includes a first electric push rod fixedly installed on the upper wall of the fixed frame, and the free end of the first electric push rod movably penetrates through the fixed frame and is fixedly connected with the connecting plate.

[0008] Preferably, the buffering mechanism comprises a plurality of connecting rods vertically fixedly installed on the end surface of the fixed plate, the connecting rods movably penetrating the fixed plate, limit blocks fixedly installed on the upper ends of the connecting rods, and a second spring movably sleeved on the outer wall of the connecting rod and fixedly connected with the fixed plate.

[0009] Preferably, the moving control mechanism comprises a second electric push rod transversely fixedly installed on the outer side wall of the fixed frame, and the free end of the second electric push rod movably penetrates the fixed frame and is fixedly connected with the moving plate.

[0010] The beneficial effects of the present application are as follows:

[0011] 1. The connecting rods and the second spring are arranged to connect the fixed plate and the connecting plate, so that the lower printing plate can be buffered when it is in contact with the plastic bag for printing, thereby prolonging the service life of the printing plate.

[0012] 2. The auxiliary rollers are arranged on the moving plate, which can limit the edges of the plastic bag and do not hinder the forward movement of the plastic bag, and the auxiliary rollers can be controlled to move by the second electric push rod, thereby matching plastic bags of different width specifications.

[0013] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the content of the specification can be implemented. The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings. The specific implementation of the present application is described in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0015] Fig. 1 The present application proposes a plastic bag printing device overall structure schematic diagram;

[0016] Fig. 2 The present application proposes a plastic bag printing device connecting plate structure schematic diagram;

[0017] Fig. 3 The present application proposes a plastic bag printing device printing plate structure schematic diagram.

[0018] Legend:

[0019] 1. Workbench; 2. Feeding roller; 3. Support; 4. Rewinding roller; 5. Fixing frame; 6. Connecting plate; 7. Fixing plate; 8. Printing plate; 9. Separation frame; 10. Telescopic rod; 11. First spring; 12. Moving plate; 13. Auxiliary roller; 14. Motor; 15. First electric push rod; 16. Connecting rod; 17. Second spring; 18. Second electric push rod. Detailed Implementation

[0020] The following is in conjunction with the appendix Figs. 1-3 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0021] like Figs. 1-3 As shown, this utility model discloses a plastic bag printing device, including a workbench 1. A feeding roller 2 is rotatably mounted on one end of the upper surface of the workbench 1. A bracket 3 is fixedly mounted on the end of the upper surface of the workbench 1 away from the feeding roller 2. A take-up roller 4 is rotatably mounted laterally on the upper part of the bracket 3. The take-up roller 4 is connected to a power mechanism, which includes a motor 14, which is a stepper motor, horizontally fixedly mounted on the outer wall of the bracket 3. Each operation drives the take-up roller 4 to rotate by a fixed angle, pulling the plastic bag forward a unit distance. The output shaft of the motor 14 rotates through the bracket 3 and is fixedly connected to the take-up roller 4. A fixed frame 5 is fixedly mounted in the middle of the workbench 1. A connecting plate 6 is mounted on the fixed frame 5 through a lifting control mechanism. The lifting control mechanism includes a first electric push rod 15 vertically fixedly mounted on the upper wall of the fixed frame 5. The free end of the first electric push rod 15 movably passes through the fixed frame 5 and is fixedly connected to the connecting plate 6. The connecting plate 6 is connected by a buffer... The punching mechanism is equipped with a fixed plate 7. A printing plate 8 is fixedly installed in the middle of the lower end face of the fixed plate 7. A separation frame 9 is movably sleeved on the outer wall of the printing plate 8. The separation frame 9 is installed and connected to the first spring 11 by means of a telescopic rod 10. When the printing plate 8 is separated from the plastic bag, the separation frame 9 is squeezed down by the first spring 11 and the plastic bag is squeezed and fixed, which helps the printing plate 8 to separate from the plastic bag. The separation frame 9 is fixedly connected to the fixed plate 7 by the vertically set telescopic rod 10. The first spring 11 is movably sleeved on the outer wall of the telescopic rod 10. The two side walls of the fixed frame 5 are respectively equipped with moving plates 12 by a moving control mechanism. Multiple auxiliary rollers 13 are installed horizontally on the side walls of the moving plates 12. This device uses the separation frame 9 to help the printing plate 8 separate from the plastic bag and prevent sticking. At the same time, the movable auxiliary rollers 13 limit the plastic bag and can be adjusted according to the size of the plastic bag to prevent the edges of the plastic bag from folding.

[0022] Specific, the buffer mechanism includes a plurality of vertical fixedly installed on the end surface of the fixed plate 7 connecting rod 16, connecting rod 16 active through the connecting plate 6, connecting rod 16 fixedly installed on the upper end of the limit block, the fixed plate 7 through the active sleeve in the connecting rod 16 outer wall of the second spring 17 and connecting plate 6 fixed connection, set connecting rod 16 cooperation second spring 17 to realize the connection of the fixed plate 7 and connecting plate 6, make the printing plate 8 and plastic bag contact printing can be buffered, reduce the wear of the printing plate 8, prolong the service life of the printing plate 8.

[0023] More specifically, the movement control mechanism includes a second electric push rod 18 fixedly installed on the outer side wall of the fixed frame 5, the free end of the second electric push rod 18 active through the fixed frame 5 and is fixedly connected with the moving plate 12, the second electric push rod 18 can indirectly control the displacement of the plurality of auxiliary rollers 13, so that the auxiliary rollers 13 can be different width specifications of plastic bag to fit.

[0024] Working principle:

[0025] According to the plastic bag specifications control second electric push rod 18 telescopic adjustment of the position of the auxiliary roller 13 on the moving plate 12, the plastic bag on the feeding roller 2 through the auxiliary roller 13 and the workbench 1 between the fixed on the winding roller 4, control start motor 14 drive winding roller 4 rotation pull plastic bag movement, every time the plastic bag moves a unit distance after the motor 14 pause work, then the first electric push rod 15 elongation indirectly drive the lower printing plate 8, separation frame 9 and plastic bag contact, printing plate 8 and plastic bag contact process second spring 17 buffer, after printing the first electric push rod 15 shortening drive printing plate 8 reset, separation frame 9 in the first spring 11 under the action of cooperation workbench 1 will be plastic tight, help printing plate 8 and plastic bag separation, and then the motor 14 work again drive winding roller 4 rotation pull plastic bag movement, repeat the above steps for the printing of plastic bag.

[0026] The above, only for the preferred embodiment of the present application, not to make any form of the present application; for ordinary technical personnel in the industry can be shown in the drawings and the above described and smooth implementation of the present application; however, for those skilled in the art without departing from the scope of the present application technical scheme, using the above disclosed technical content of some change, modification and evolution of the equivalent changes, are equivalent embodiments of the present application; at the same time, for any equivalent changes of the above embodiments according to the essence of the present application, modification and evolution, etc., still belong to the protection scope of the technical scheme of the present application.

Claims

1. A device for printing plastic bags, comprising a worktable (1), characterized in that: The upper end face of the workbench (1) is rotatably installed with a feeding roller (2), and the upper end face of the workbench (1) is fixedly installed with a support (3) away from the feeding roller (2), and the upper part of the support (3) is transversely rotatably installed with a winding roller (4), and the winding roller (4) is connected with a power mechanism, and the middle part of the workbench (1) is fixedly installed with a fixed frame (5), and the fixed frame (5) is installed with a connecting plate (6) through a lifting control mechanism, and the connecting plate (6) is installed with a fixed plate (7) through a buffer mechanism, and the lower end face of the fixed plate (7) is fixedly installed with a printing plate (8), and the outer wall of the printing plate (8) is movably sleeved with a separation frame (9), and the separation frame (9) is fixedly connected with the fixed plate (7) through a vertically arranged telescopic rod (10), and the outer wall of the telescopic rod (10) is movably sleeved with a first spring (11), and the side walls of the fixed frame (5) are respectively installed with a moving plate (12) through a moving control mechanism, and the side wall of the moving plate (12) is transversely rotatably installed with a plurality of auxiliary rollers (13) arranged at equal intervals.

2. A plastic bag printing apparatus as claimed in claim 1, wherein: The power mechanism comprises a motor (14) fixedly installed on the outer wall of the support (3), and the output shaft of the motor (14) is rotatably penetrated through the support (3) and fixedly connected with the winding roller (4).

3. The apparatus of claim 1, wherein: The lifting control mechanism comprises a first electric push rod (15) fixedly installed on the upper wall of the fixed frame (5), and the free end of the first electric push rod (15) is movably penetrated through the fixed frame (5) and fixedly connected with the connecting plate (6).

4. The apparatus of claim 1, wherein: The buffer mechanism comprises a plurality of connecting rods (16) fixedly installed on the upper end face of the fixed plate (7), and the connecting rods (16) are movably penetrated through the connecting plate (6), and the upper end of the connecting rod (16) is fixedly installed with a limiting block, and the fixed plate (7) is fixedly connected with the connecting plate (6) through a second spring (17) movably sleeved on the outer wall of the connecting rod (16).

5. The apparatus of claim 1, wherein: The moving control mechanism comprises a second electric push rod (18) fixedly installed on the outer side wall of the fixed frame (5), and the free end of the second electric push rod (18) is movably penetrated through the fixed frame (5) and fixedly connected with the moving plate (12).